熔融热导法下进样方式分析钢中氮元素的含量  

Measurement of Nitrogen Content in Steel with Thermal Conductivity and Melting Method and Lower Sample Introduction

作　　者：杜津[1] 田子达 王璐[1] DU Jin;TIAN Zi-da;WANG Lu(Technology Center of Tianjin Iron and Steel Group Co., Ltd., Tianjin 300301, China)

机构地区：[1]天津钢铁集团有限公司技术中心,天津300301

出　　处：《天津冶金》2017年第4期78-80,共3页Tianjin Metallurgy

摘　　要：为精确测定钢中氮元素的含量,利用惰性气体熔融热导法,采用ONH联合分析仪下进样方式检测屑状钢样品中氮元素含量。该检验方法可以有效地节约实验时间,提高工作效率,准确性及精密度较高,能够满足生产检验要求。In order to precisely measure the content of nitrogen in steel,inert gas thermal conductivity and melting method and lower sample introduction method via ONH joint analyzer were adopted to measure the nitrogen content in swarf sample.This inspection method could effectively save experiment time,improve working efficiency,accuracy and precision and meet the requirement by production inspection.

关 键 词：热导熔融法 屑状钢样 下进样 氮元素 

分 类 号：TG142.15[一般工业技术—材料科学与工程]